Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy (THEIA) is a

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...

-proposed 4-metre optical/ultraviolet

space telescope A space telescope or space observatory is a telescope in outer space used to observe astronomical objects. Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory, OAO-2 launch ...

that would succeed the

Hubble Space Telescope The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most vers ...

and complement the infrared- James Webb Space Telescope. THEIA would use a 40-metre occulter to block starlight so as to directly image

exoplanets An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...

. It was proposed with three main instruments and an occulter: *eXoPlanet Characterizer (XPC) *Star Formation Camera (SFC), *Ultraviolet Spectrograph (UVS) *A separate occulter spacecraft

References

THEIA Website

External links

2010 white paper
(.pdf)
Design of a telescope-occulter system for THEIA
Space telescopes {{US-spacecraft-stub

See also

References

External links